./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness_negated.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f4ea1bf819896c6e25ef3f7fb1779a7e8667d9fd31f879e3224eef1df9a587fe --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 17:53:27,591 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 17:53:27,643 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 17:53:27,647 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 17:53:27,647 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 17:53:27,659 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 17:53:27,661 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 17:53:27,661 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 17:53:27,661 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 17:53:27,661 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 17:53:27,662 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 17:53:27,662 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 17:53:27,662 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 17:53:27,662 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 17:53:27,663 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 17:53:27,663 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 17:53:27,663 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 17:53:27,663 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 17:53:27,663 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 17:53:27,663 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 17:53:27,663 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 17:53:27,663 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 17:53:27,663 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 17:53:27,663 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 17:53:27,664 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 17:53:27,664 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 17:53:27,664 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 17:53:27,664 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 17:53:27,664 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 17:53:27,664 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:53:27,664 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 17:53:27,665 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 17:53:27,665 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 17:53:27,665 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 17:53:27,665 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 17:53:27,665 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 17:53:27,665 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 17:53:27,665 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 17:53:27,665 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 17:53:27,665 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 17:53:27,665 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4ea1bf819896c6e25ef3f7fb1779a7e8667d9fd31f879e3224eef1df9a587fe [2025-03-08 17:53:27,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 17:53:27,864 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 17:53:27,866 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 17:53:27,866 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 17:53:27,867 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 17:53:27,867 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness_negated.i [2025-03-08 17:53:28,971 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84f7e3fc4/132b4323e99040a8a1390d9cd429b8a8/FLAG3c49cb8b7 [2025-03-08 17:53:29,355 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 17:53:29,356 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness_negated.i [2025-03-08 17:53:29,383 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84f7e3fc4/132b4323e99040a8a1390d9cd429b8a8/FLAG3c49cb8b7 [2025-03-08 17:53:29,395 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84f7e3fc4/132b4323e99040a8a1390d9cd429b8a8 [2025-03-08 17:53:29,397 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 17:53:29,398 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 17:53:29,399 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 17:53:29,399 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 17:53:29,402 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 17:53:29,402 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:53:29" (1/1) ... [2025-03-08 17:53:29,403 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1718821c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:53:29, skipping insertion in model container [2025-03-08 17:53:29,403 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:53:29" (1/1) ... [2025-03-08 17:53:29,469 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 17:53:29,654 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness_negated.i[4498,4511] [2025-03-08 17:53:29,662 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness_negated.i[4558,4571] [2025-03-08 17:53:30,187 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:53:30,191 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:53:30,192 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:53:30,192 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:53:30,194 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:53:30,204 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:53:30,204 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:53:30,206 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:53:30,208 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:53:30,565 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:53:30,565 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:53:30,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:53:30,671 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 17:53:30,680 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness_negated.i[4498,4511] [2025-03-08 17:53:30,681 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness_negated.i[4558,4571] [2025-03-08 17:53:30,724 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:53:30,728 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:53:30,728 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:53:30,728 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:53:30,729 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:53:30,733 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:53:30,733 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:53:30,734 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:53:30,734 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:53:30,822 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8259] [2025-03-08 17:53:30,824 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:53:30,824 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:53:30,834 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8745-8756] [2025-03-08 17:53:30,850 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:53:30,998 INFO L204 MainTranslator]: Completed translation [2025-03-08 17:53:30,998 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:53:30 WrapperNode [2025-03-08 17:53:30,998 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 17:53:30,999 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 17:53:30,999 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 17:53:30,999 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 17:53:31,003 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:53:30" (1/1) ... [2025-03-08 17:53:31,044 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:53:30" (1/1) ... [2025-03-08 17:53:31,101 INFO L138 Inliner]: procedures = 680, calls = 2612, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 803 [2025-03-08 17:53:31,102 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 17:53:31,102 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 17:53:31,102 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 17:53:31,102 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 17:53:31,109 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:53:30" (1/1) ... [2025-03-08 17:53:31,109 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:53:30" (1/1) ... [2025-03-08 17:53:31,129 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:53:30" (1/1) ... [2025-03-08 17:53:31,180 INFO L175 MemorySlicer]: Split 527 memory accesses to 5 slices as follows [2, 257, 238, 7, 23]. 49 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 0, 6, 5, 4]. The 493 writes are split as follows [0, 257, 232, 1, 3]. [2025-03-08 17:53:31,180 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:53:30" (1/1) ... [2025-03-08 17:53:31,180 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:53:30" (1/1) ... [2025-03-08 17:53:31,211 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:53:30" (1/1) ... [2025-03-08 17:53:31,217 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:53:30" (1/1) ... [2025-03-08 17:53:31,220 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:53:30" (1/1) ... [2025-03-08 17:53:31,226 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:53:30" (1/1) ... [2025-03-08 17:53:31,235 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 17:53:31,235 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 17:53:31,235 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 17:53:31,235 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 17:53:31,236 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:53:30" (1/1) ... [2025-03-08 17:53:31,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:53:31,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:53:31,265 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 17:53:31,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 17:53:31,283 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-03-08 17:53:31,284 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-03-08 17:53:31,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 17:53:31,284 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-08 17:53:31,284 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-08 17:53:31,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 17:53:31,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 17:53:31,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 17:53:31,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 17:53:31,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 17:53:31,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 17:53:31,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 17:53:31,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 17:53:31,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 17:53:31,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 17:53:31,285 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 17:53:31,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 17:53:31,286 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_secure_zero [2025-03-08 17:53:31,286 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_secure_zero [2025-03-08 17:53:31,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 17:53:31,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 17:53:31,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 17:53:31,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 17:53:31,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 17:53:31,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 17:53:31,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-08 17:53:31,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 17:53:31,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 17:53:31,287 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-08 17:53:31,287 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-08 17:53:31,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-08 17:53:31,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-08 17:53:31,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-08 17:53:31,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-08 17:53:31,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-08 17:53:31,287 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 17:53:31,287 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 17:53:31,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 17:53:31,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 17:53:31,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 17:53:31,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 17:53:31,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 17:53:31,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-08 17:53:31,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-08 17:53:31,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-08 17:53:31,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-08 17:53:31,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-08 17:53:31,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-08 17:53:31,289 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-08 17:53:31,289 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-08 17:53:31,289 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-08 17:53:31,289 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-08 17:53:31,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 17:53:31,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 17:53:31,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 17:53:31,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 17:53:31,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 17:53:31,289 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2025-03-08 17:53:31,289 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2025-03-08 17:53:31,289 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2025-03-08 17:53:31,290 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2025-03-08 17:53:31,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 17:53:31,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 17:53:31,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 17:53:31,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 17:53:31,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 17:53:31,478 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 17:53:31,481 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 17:53:31,510 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6874: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-08 17:53:31,513 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-08 17:53:31,519 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7310: havoc #t~ret656.base, #t~ret656.offset; [2025-03-08 17:53:31,572 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7367: havoc #t~mem681;havoc #t~mem682;havoc #t~short683;havoc #t~mem684.base, #t~mem684.offset;havoc #t~short685;havoc #t~mem686;havoc #t~mem687;havoc #t~mem688;havoc #t~short689;havoc #t~mem690;havoc #t~mem691.base, #t~mem691.offset;havoc #t~short692;havoc #t~short693;havoc #t~short694;havoc #t~short695; [2025-03-08 17:53:31,581 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-08 17:53:38,102 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6588: havoc aws_byte_buf_is_bounded_#t~mem477#1; [2025-03-08 17:53:38,143 INFO L? ?]: Removed 74 outVars from TransFormulas that were not future-live. [2025-03-08 17:53:38,143 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 17:53:38,151 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 17:53:38,151 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 17:53:38,151 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:53:38 BoogieIcfgContainer [2025-03-08 17:53:38,151 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 17:53:38,153 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 17:53:38,153 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 17:53:38,156 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 17:53:38,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 05:53:29" (1/3) ... [2025-03-08 17:53:38,157 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c7dd2fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:53:38, skipping insertion in model container [2025-03-08 17:53:38,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:53:30" (2/3) ... [2025-03-08 17:53:38,157 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c7dd2fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:53:38, skipping insertion in model container [2025-03-08 17:53:38,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:53:38" (3/3) ... [2025-03-08 17:53:38,158 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_secure_zero_harness_negated.i [2025-03-08 17:53:38,166 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 17:53:38,167 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_secure_zero_harness_negated.i that has 11 procedures, 102 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 17:53:38,204 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 17:53:38,212 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27aa6a40, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 17:53:38,212 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 17:53:38,214 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 69 states have (on average 1.2173913043478262) internal successors, (84), 70 states have internal predecessors, (84), 21 states have call successors, (21), 10 states have call predecessors, (21), 10 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2025-03-08 17:53:38,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-03-08 17:53:38,220 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:53:38,220 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 17:53:38,221 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:53:38,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:53:38,224 INFO L85 PathProgramCache]: Analyzing trace with hash -80615876, now seen corresponding path program 1 times [2025-03-08 17:53:38,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:53:38,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299804139] [2025-03-08 17:53:38,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:53:38,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:54:42,400 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-03-08 17:54:42,845 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-03-08 17:54:42,846 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:54:42,846 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:54:43,453 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2025-03-08 17:54:43,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:54:43,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299804139] [2025-03-08 17:54:43,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299804139] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 17:54:43,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459968639] [2025-03-08 17:54:43,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:54:43,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 17:54:43,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:54:43,457 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 17:54:43,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process